autenticazione/App/Models/Token.php

<?php

namespace MwgAuth\Models;

use MwgAuth\Core\Model;

class Token extends Model
{
    public static function useCns(string $token): bool
    {
        $token = self::selectOne('tokens', ['auth'], ['token' => $token]);
        if (null === $token) {
            return true;
        }
        $user_id = self::selectOne('sessions', ['user_id'], ['auth' => $token['auth']]);
        if (null === $user_id) {
            return true;
        }
        $useCns = self::selectOne('users', ['use_cns'], ['id' => $user_id['user_id']]);
        return $useCns['use_cns'] == 1;
    }
}